Data Analysis and Quantization The brilliance of Millikan's analysis lay in its simplicity. Millikan between 1909 and 1913, this investigation utilized a cleverly designed apparatus to isolate and track tiny droplets of oil suspended in an electric field.
Millikan Oil Experiment Voltage Droplet Suspension: Observing Charge Quantization
Mass was derived from the droplet's terminal velocity and Stoke's law, accounting for the air's viscosity. He recorded the charge of thousands of individual droplets, observing that the values were always integer multiples of a smallest, common unit.
The constant "e," approximately 1. This value was essential for calculating Avogadro's number, linking the microscopic world of atoms to the macroscopic scale chemists used daily.
Millikan Oil Experiment Voltage Droplet Suspension: Observing Charge Quantization
Critical components included: A precision atomizer to create oil droplets of varying sizes. A microscope allowed for precise observation of oil droplets falling through a small hole in the top plate.
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